Method of making threaded locking devices



511m@ E3, 94@ R W LUCE 2,35L057 METHOD oF MAKING IHREADED LOCKING DEVICES Filed Feb. 5, 1943 Ill - Tij-4 4 lNvENToR /P/c/,AAQ h/ z/cf 7( ATTORNEY Patented June 13, 1944 I UNITED" STATES PATENT ioFFlcE ME'I'IIon 0F MAKING TImI-:ADED LoUxING v DEVICES Richard W. Luce, Southport, Conn. i Application February 5, 1943, Serial No. 474,762

s claims. (ci. 1li-gs) In a lock-nut of the kind mentioned, there is a 5 erly related for. asis done later. .rolling the ange threaded nut body and commolllya nonmetalinwardly, lic, fibrous elastic, washer secured at one end of In the blank illustrated the depression l at the the nul body In general the nut body and end of the nut body I formed by the Partially axwasher retainer are integral formed from a sln- Tally extending section 5 of the curved portion o that is rolled over on the washer to secure the inpln 0r transverse Section.

washer in place and against notation with re. After the bla-pk 0! F188. 1 and 2 1S formed in spect to the nut body. n the heading operation, the flange 2 is trimmed.' An object of this invention is to provide a 15 Ill the trimming of the flange. Series 0f Strips invention is to provide a method by which the 2o ange and punching may be done in the one opmetal blanks for such lock-nuts may be made by eraf-ion The nut body 1S then lapped t0 form a a heading and punching operation. thread 8 therein.

In accordance with the invention a blank is A non-metallic. fibrous washer l having a formed in a heading operation and includes a. perimeter COIIlplementary t0 the Perimeter 0! the nut body and an outwardly nai-ing aange at one 25 depression 4 is inserted 1n the depression against end of the. nut body This ganse is trimmed to the end face ot the nut body. The washerhse au description is to bemad in niunction with ourely held in place by the inturned ange the accompanying drawing wherein the nous esainst axial and rotative movement with respect stages ot the forming of the blank to the oomto thenut body. The hexagonal eonngumtion of pleted nut are illustrated. The drawing includes: the depression 4 and the complementary oon- Fig, 1 which is a Sectional elevation of e'hend- 40 suration o! the perimeter ot the washerl also ed nut blank;

Hg. zwhlch isaplan'otthesame; respectto thenut body.

Fig. 3 whicl "s a plan o! the same showing themannerin whichtheangeistmmed; y

pietednlmand I claim: v

le. Swhichisn plm of theme. 1. The method of producing s self-locking nut Inthe. instanAblnksuchasmt-@ ofthekindinwhichnnelutiewldiereireetsthe edinleilgs.1lindzisforl'medmthendingopernF lookingactlomwhich methodinchldcgthestens l.; ms

frein a slug. The bank is formed u include a, depression at one end und an out nut body t and an outwardly extending nnen or angeat theend containing the'depression,trim nnnge 2 which is Joined to the end of the mit 55 minathelngeforminleholethmughthebody portion and tlppinl the bod! portion. placing an end o! the bod! in a smooth curve. trimming the elastic washer in the depression and rolling the dange. forming a hole throuah and tapping the :linge inwardly to engage the end surface oi the body, placing an elastic washer within the flange washer and retain the washer in position. and against the end-oi the body. and rolling the 2.' The method of producins a sell-locking nut l iiange inwardly to extend over and engage the o! the kind in which an elastic washer eiiects the washer. I lockina action, which m thod includes the steps 5. The method o! producing a self-locking nut of heading a polygonal lshaped blank to produce i of the kind in which an elastic washer eiiects the a nut body with a polygonal depression at one locking action. which method includes the steps end and an outwardly flaring Asnge at the end l0 oi heading a blank to include a nut body with a contamina the depression', trimming the harige, polygonal depression at one en and an outto produce a plurality oi outwardly extending wardly flaring' nge joined to the end oi the strips. forming a hole through and tapping the body in a smoo curve. trimming the flange. body portion, placing an elastic washer in the forming a hole through and tapping the body.

depression and rolling the flange an strips inlo placing a polygonal `washer in the depression.

wardly to extend over and engage the washer. and rolling the flange upwardly and inwardly toiects the locking action, which method includes of the kind in which an elastic washer eiiects the the steps oi heading a blank to include a nut 20 locking action, which method includes the steps body with a depression at one end and an outof heading a blank to include a nut body with a wardly extending flange Joined to the nut body polygonal epression at one end and an outwardin a smooth curve, trlmmin the ilange, forming ly fiaring ange Joined to the end of the body in a hole ,through and tapping the body, placing an a smooth curve, trimming the' dange to iorm a elastic washer'in the depression. and rolling the 85 plurality oi strips corresponding in number to ilange inwardly to extend over and engage thel the faces of the polygonal depression, forming a v washen hole through and tapping the body, placing a 4. The method oi producing ascii-locking nut polygonal washer in the depression. and rolling ci the kind in which an elastic washer eiiects the the iiange inwardly to extend over and engage locking action, which method includes the steps 3 the washer.

of heading a blank to includela nut body and an RICHARD W. LUCE. outwardly daring flange at one end joined to the 

